78532350661811 has 8 divisors (see below), whose sum is σ = 79647606165600. Its totient is φ = 77417349770880.

The previous prime is 78532350661799. The next prime is 78532350661927. The reversal of 78532350661811 is 11816605323587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78532350661811 - 2¹⁰ = 78532350660787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78532350661211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63031916 + ... + 64265753.

It is an arithmetic number, because the mean of its divisors is an integer number (9955950770700).

Almost surely, 2^{78532350661811} is an apocalyptic number.

78532350661811 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

78532350661811 is a deficient number, since it is larger than the sum of its proper divisors (1115255503789).

78532350661811 is a wasteful number, since it uses less digits than its factorization.

78532350661811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127306429.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 78532350661811 in words is "seventy-eight trillion, five hundred thirty-two billion, three hundred fifty million, six hundred sixty-one thousand, eight hundred eleven".